Escaped Sequences in Regular Expressions
The escape character can be combined with other characters to represent nonprinting characters. Qedit recognizes the following escaped characters: (These should not be confused with escape sequences that control the display on HP-type terminals. They are also not metacharacters.)
| \b | Backspace |
| \e | ASCII escape character (ESC) |
| \f | Form feed |
| \n | New line (line feed) |
| \r | Carriage return |
| \s | Space |
| \t | Horizontal tab |
| \DDD | 1-3 octal digits representing a character’s ASCII value |
| \xDDD | 1-3 hex digits representing a character’s ASCII value |
| \^C | Control code (e.g., Control-G (^G) is the Bell character) |
For example, you would use:
\t {all lines with a tab character} \e&d@& {terminal escape sequence ESC&d@}
Escaped characters can be used anywhere an ordinary character is used, including a character class and to declare a character range.